I have the same problem, although, I think a little worse. I noticed the little wire popping out of the antenna tube one time, and I pulled it. It came straight out. It looked like almost the whole length of the antenna. The car still works though, and I still get decent range on it. So until it becomes a problem, I'm going to leave it alone.
lol well i went to my lhs and got a new antena and antena tube then i did the tube mod. works great and cheap too.$2.50 for everything. plus now it can't flip on its hood. man jb weld is the ducktape of rc.